KOAR BeBox Bluetooth Waterproof Speaker Delivering A Superior Rechargeable Portable Wireless Sound System, Black Portable Bluetooth Speaker delivering Excellent Sound And Deep Bass With Powerful 2.1 Speakers Helping You Enjoy High Quality Music And Phone Calls Indoors And Outdoors Precision Waterproof Bluetooth Speakers, Wirelessly Connects To All Your Devices. Hook The KOAR BeBox Speaker Up To Your Backpack Or Bike With The Detachable Carabiner. High Quality Internal Components And A Flexible Silicon Outer Wrap Providing Rugged And Durable Ipx6 Rating All-Weather Protection Rechargeable Battery, 8.5 Hours Of Music On 1 Charge So You Can Keep Your Tunes Going All Day